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http://hdl.handle.net/10261/23369
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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Morales-Nin, Beatriz | - |
dc.contributor.author | Lombarte, Antoni | - |
dc.contributor.author | Japón, Beatriz | - |
dc.date.accessioned | 2010-04-21T12:28:21Z | - |
dc.date.available | 2010-04-21T12:28:21Z | - |
dc.date.issued | 1998-09-30 | - |
dc.identifier.citation | Scientia Marina 62(3): 247-256 (1998) | en_US |
dc.identifier.issn | 0214-8358 | - |
dc.identifier.uri | http://hdl.handle.net/10261/23369 | - |
dc.description | 10 pages, 4 figures, 2 tables. | en_US |
dc.description.abstract | Population studies of fish depend upon correct age estimates. However ageing from otoliths is often a subjective activity, based on experience. To produce more objective and reproducible results, image analysis systems for semiautomatic otolith reading are being developed. We propose determinig the daily growth and annual structures in each otolith by means of Fourier analysis of the luminous signal, after filtering the high frequencies by means of a moving threshold. A new approach using spatio-frequential wavelet analysis is discussed for otolith age determination. The different readings of each otolith are standardised and weighted to obtain a combined age determination and vector of increment widths. | en_US |
dc.description.sponsorship | This paper is a result of the project “PETRI.93- 034” sponsored by the Spanish CICYT. | en_US |
dc.format.extent | 1100757 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | Consejo Superior de Investigaciones Científicas (España) | en_US |
dc.rights | openAccess | en_US |
dc.subject | Otoliths | en_US |
dc.subject | Fourier analysis | en_US |
dc.subject | Image procesing | en_US |
dc.subject | Wavelets | en_US |
dc.title | Approaches to otolith age determination: image signal treatment and age attribution | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.3989/scimar.1998.62n3247 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.3989/scimar.1998.62n3247 | en_US |
dc.identifier.e-issn | 1886-8134 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
Aparece en las colecciones: | (IMEDEA) Artículos (ICM) Artículos |
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